A Discord chat system is ephemeral. Posting links there is a great way to gather content, but not so great for keeping as an archive or for long form comments.
Discourse is a great forum system where content can be tagged and discussed long form.
Who would want to use this and why?
Anyone that uses both Discord and Discourse, and wants to save links where they can be more easily discovered and commented on.
Configure which channels to check for links.
Configure length of time
Real time, daily and weekly would be good defaults.
Configure archive vs single post.
Archive mode posts an entire new topic with all links posted daily or weekly.
Single posts, posts each link as a new topic.
Configure Discourse posting topic
This could also be a channel to category mapping, and/or also default tags per channel to add.